Marshfield Reports 6.29% Stake in Strategic Education

Marshfield Associates Inc reported its beneficial ownership of STRATEGIC EDUCATION INC common stock in an updated Schedule 13G filing.

Rhea-AI Filing Summary

Marshfield Associates Inc reported its beneficial ownership of STRATEGIC EDUCATION INC common stock in an updated Schedule 13G filing. Marshfield holds 1,478,522 shares, representing 6.29% of the company’s outstanding common stock. It has sole voting power over 1,096,519 shares and sole dispositive power over 1,478,522 shares.

The firm states that the shares were acquired and are held in the ordinary course of business, and not for the purpose of changing or influencing control of the company. The certification is signed by Brian Walker, General Counsel and Chief Compliance Officer of Marshfield Associates Inc.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What percentage of STRA does Marshfield Associates Inc beneficially own?

Marshfield Associates Inc beneficially owns 6.29% of STRATEGIC EDUCATION INC’s common stock. This corresponds to 1,478,522 shares, giving Marshfield a significant but minority stake in the company based on this Schedule 13G amendment.

How many STRA shares does Marshfield Associates Inc control for voting?

Marshfield Associates Inc has sole voting power over 1,096,519 shares of STRATEGIC EDUCATION INC. It reports no shared voting power, indicating that voting decisions on these shares are controlled solely by Marshfield under the filing.

What is the total number of STRA shares Marshfield Associates Inc can dispose of?

Marshfield Associates Inc reports sole dispositive power over 1,478,522 shares of STRATEGIC EDUCATION INC. Dispositive power means it alone decides if and when these shares are sold or otherwise transferred, with no shared dispositive authority disclosed.

Is Marshfield Associates Inc seeking to influence control of STRA with this stake?

Marshfield Associates Inc certifies it is not holding STRATEGIC EDUCATION INC shares to change or influence control. The filing states the securities were acquired and are held in the ordinary course of business, consistent with a passive investment stance.

What type of security in STRA does Marshfield Associates Inc hold?

Marshfield Associates Inc holds common stock of STRATEGIC EDUCATION INC, identified by CUSIP 86272C103. Common stock represents standard equity ownership, including rights to vote on certain corporate matters and to share in potential future dividends.

Who signed the beneficial ownership filing for Marshfield Associates Inc?

The filing is signed by Brian Walker, General Counsel and Chief Compliance Officer of Marshfield Associates Inc. His signature certifies that, to the best of his knowledge and belief, the information in the beneficial ownership statement is true, complete, and correct.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 02/17/2026 - 05:26 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 4)

STRATEGIC EDUCATION INC

(Name of Issuer)

Common Stock

(Title of Class of Securities)

86272C103

(CUSIP Number)

12/31/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 86272C103

1

Names of Reporting Persons

Marshfield Associates Inc

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DISTRICT OF COLUMBIA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 1,096,519.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 1,478,522.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,478,522.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.29 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: STRATEGIC EDUCATION INC
(b)	Address of issuer's principal executive offices: 2303 Dulles Station Blvd, Herndon, VA 20171
Item 2.
(a)	Name of person filing: Marshfield Associates Inc
(b)	Address or principal business office or, if none, residence: 21 Dupont Circle, NW, Suite 500, Washington, DC 20036
(c)	Citizenship: USA
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 86272C103
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned:
(b)	Percent of class:
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 1,096,519
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 1,478,522
	(iv) Shared power to dispose or to direct the disposition of: 0

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Marshfield Associates Inc

Signature:	/s/ Brian Walker
Name/Title:	Brian Walker / General Counsel and CCO
Date:	02/14/2026